[OBJECT] To provide a
fuel supply apparatus that can quickly supply
hydrogen gas to a vehicle equipped with a plurality of large-capacity fuel tanks while observing a filling protocol. [SOLUTION] A
fuel supply apparatus 100 according to the present invention including: a plurality of supply systems (101, 102); a supply control device (10, 20) provided in each of the supply systems (101, 102); a supply
pipe (31, 41) communicating each of the supply systems (101, 102) and each of rear facilities (50, 60); a supply member (flow rate regulating valve 2, 12, etc.) interposed in the supply
pipe (31, 41) and connected to each of the supply control devices (10, 20); and a supply hose (7, 17) connected to the supply
pipe (31, 41), the supply hose (7, 17) having a supply
nozzle (8, 18) at its tip, wherein the supply control device (10, 20) includes: a function of determining whether or not communication filling is established in one side of the supply
system (101) and / or the other side of the supply
system (102); and when communication filling is not established in the supply
system (101) on the one side and communication filling is established in the supply system (102) on the other side, a function of supplying using vehicle side data in the supply system (102) on the other side.